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Compare supplement prices normalized to cost per gram of active ingredient. No health claims — just transparent pricing data.

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Search Supplements

184 products found

Package Size:All sizes162< 602360–12082120–25049250+8

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Supplement Type

Alpha GPCAshwagandhaB ComplexCalciumCollagenCoQ10CreatineImmune SupportInositolL-TheanineLion's ManeMagnesiumNadNmnNootropicsNrOmega-3ProbioticsProteinPterostilbeneResveratrolSpermidineSuperfoodsVitamin CVitamin DZinc

Retailer

AmazonBulkSupplementsiHerbSwanson Vitamins

Brand

21st CenturyABEALLMAXAdvanced ClinicalsAgeless Foundation Laboratories

Form

capsulecapsulesgummyliquidlozengepowdersoftgeltablet

Availability

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Save 95%
#141
Nutricost L-Theanine 200mg, 240 Capsules
$0.42per gram
$19.95 / bottle
Nutricost L-Theanine 200mg, 240 Capsules
NutricostiHerbNew2 options
Per Serving$0.08
Servings240
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerb240 ctNutricost L-Theanine 200mg, 240 Capsules
$19.95Buy
i
30 ctNutricost L-Theanine 200mg Capsules, 30 Count
$5.70Buy
Save 94%
#142
Nutricost L-Theanine 200 mg, 120 Capsules
$0.50per gram
$11.95 / bottle
Nutricost L-Theanine 200 mg, 120 Capsules
NutricostiHerbNew2 options
Per Serving$0.10
Servings120
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerb120 ctNutricost L-Theanine 200 mg, 120 Capsules
$11.95Buy
i
30 ctNutricost L-Theanine 200mg, 30 Count
$19.95Buy
Save 93%
#143
Primaforce L-Theanine 200mg, 120 Capsules
$0.52per gram
$12.50 / bottle
Primaforce L-Theanine 200mg, 120 Capsules
PrimaforceiHerbNew
Per Serving$0.10
Servings120
Formcapsule
Updated today
iBuyAffiliate link
Save 93%
#144
Organika L-Theanine 225 mg, 90 Vegetarian Capsules
$0.55per gram
$12.99 / bottle
Organika L-Theanine 225 mg, 90 Vegetarian Capsules
OrganikaiHerbNew
Per Serving$0.12
Servings90
Formcapsule
Updated just now
iBuyAffiliate link
Save 93%
#145
Terra Origin Healthy Gut Berry, 8.57 oz
$0.56per mg
$35.99 / bottle
Terra Origin Healthy Gut Berry, 8.57 oz
Terra OriginiHerb
Per Serving$1.20
Servings30
Formcapsule
Updated just now
iBuyAffiliate link
Save 93%
#146
Force Factor L-Theanine Extra Strength 200mg, 60 Vegetarian Capsules
$0.58per gram
$6.99 / bottle
Force Factor L-Theanine Extra Strength 200mg, 60 Vegetarian Capsules
Force FactoriHerbNew2 options
Per Serving$0.12
Servings60
Formcapsule
Updated today
iBuyAffiliate link

All options (sorted by value):

i
iHerb60 ctForce Factor L-Theanine Extra Strength 200mg, 60 Vegetarian Capsules
$6.99Buy
i
60 ctForce Factor Magnesium + L-Theanine Vegetable Capsules, 120 Count
$19.97Buy
Save 92%
#147
EVLution Nutrition Alpha GPC, 60 Veg Capsules
$0.66per gram
$11.93 / bottle
EVLution Nutrition Alpha GPC, 60 Veg Capsules
EVLutioniHerbNew
Per Serving$0.40
Servings30
Formcapsule
Updated just now
iBuyAffiliate link
Save 91%
#148
NutraLife L-Theanine 200 mg, 60 Capsules
$0.71per gram
$8.54 / bottle
NutraLife L-Theanine 200 mg, 60 Capsules
NutraLifeiHerbNew
Per Serving$0.14
Servings60
Formcapsule
Updated today
iBuyAffiliate link
Save 91%
#149
NOW Foods Magnesium Citrate, 240 Veg Capsules
$0.73per gram
$23.27 / bottle
NOW Foods Magnesium Citrate, 240 Veg Capsules
NOW FoodsiHerbNew
Per Serving$0.29
Servings80
Formcapsule
Updated just now
iBuyAffiliate link
Save 90%
#150
Nature's Truth L Theanine 200mg, 60 Capsules
$0.75per gram
$8.99 / bottle
Nature's Truth L Theanine 200mg, 60 Capsules
Nature's TruthAmazon3 options · 2 retailers
Per Serving$0.15
Servings60
Formcapsule
Updated today
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All options (sorted by value):

Amazon60 ctNature's Truth L Theanine 200mg, 60 Capsules
$8.99Buy
i
iHerb60 ctNature's Truth L-Theanine 200 mg, 60 Capsules
$9.08Buy
Amazon30 ctNature's Truth KSM-66 Ashwagandha with L-Theanine, 60 Caplets
Buy
Save 90%
#151
California Gold Nutrition L-Theanine, 100 mg, 60 Count
$0.75per gram
$4.50 / bottle
California Gold Nutrition L-Theanine, 100 mg, 60 Count
California Gold NutritioniHerbNew2 options · 2 retailers
Per Serving$0.07
Servings60
Formcapsule
Updated just now
iBuyAffiliate link

All options (sorted by value):

i
iHerb60 ctCalifornia Gold Nutrition L-Theanine, 100 mg, 60 Count
$4.50Buy
Amazon60 ctCalifornia Gold Nutrition L-Theanine, 100 mg, 60 Veggie Capsules
$9.99Buy
Save 90%
#152
NOW Foods Magnesium Citrate, 120 Veg Capsules
$0.77per gram
$12.24 / bottle
NOW Foods Magnesium Citrate, 120 Veg Capsules
NOW FoodsiHerbNew
Per Serving$0.31
Servings40
Formcapsule
Updated today
iBuyAffiliate link
Save 90%
#153
Host Defense Lion's Mane Mushrooms, 120 Capsules
$0.79per gram
$47.22 / bottle
Host Defense Lion's Mane Mushrooms, 120 Capsules
Host DefenseiHerbNew
Per Serving$0.79
Servings60
Formcapsule
Updated just now
iBuyAffiliate link
Save 89%
#154
Nutricost Alpha GPC Capsules 300mg, 60 Count
$0.83per gram
$14.95 / bottle
Nutricost Alpha GPC Capsules 300mg, 60 Count
NutricostiHerbNew
Per Serving$0.50
Servings30
Formcapsule
Updated today
iBuyAffiliate link
Save 89%
#155
Host Defense Lion's Mane Mushrooms, 60 Capsules
$0.85per gram
$25.47 / bottle
Host Defense Lion's Mane Mushrooms, 60 Capsules
Host DefenseiHerbNew
Per Serving$0.85
Servings30
Formcapsule
Updated today
iBuyAffiliate link
Save 89%
#156
Solaray Magnesium Citrate VegCaps, 180 Count
$0.87per gram
$20.89 / bottle
Solaray Magnesium Citrate VegCaps, 180 Count
SolarayiHerbNew
Per Serving$0.35
Servings60
Formcapsule
Updated just now
iBuyAffiliate link
Save 89%
#157
Swanson Albion Magnesium Glycinate 133 mg, 90 Vegan Capsules
$0.88per gram
$6.99 / bottle
Swanson Albion Magnesium Glycinate 133 mg, 90 Vegan Capsules
SwansoniHerbNew
Per Serving$0.12
Servings60
Formcapsule
Updated just now
iBuyAffiliate link
Save 88%
#158
Solaray Organic Lion's Mane Fermented, 60 Capsules
$0.95per gram
$28.49 / bottle
Solaray Organic Lion's Mane Fermented, 60 Capsules
SolarayiHerbNew
Per Serving$0.95
Servings30
Formcapsule
Updated today
iBuyAffiliate link
Save 88%
#159
Life Extension Magnesium Citrate 100mg, 100 Vegetarian Capsules
$0.95per gram
$9.50 / bottle
Life Extension Magnesium Citrate 100mg, 100 Vegetarian Capsules
Life ExtensioniHerbNew
Per Serving$0.10
Servings100
Formcapsule
Updated today
iBuyAffiliate link
Save 87%
#160
Host Defense Lion's Mane Mushrooms Capsules, 30 Count
$1.05per gram
$15.72 / bottle
Host Defense Lion's Mane Mushrooms Capsules, 30 Count
Host DefenseiHerbNew
Per Serving$1.05
Servings15
Formcapsule
Updated today
iBuyAffiliate link
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